The Prometheus Adapter is a Kubernetes-native tool that bridges the gap between Prometheus metrics and Kubernetes' Custom Metrics API. It enables you to expose Prometheus metrics as custom metrics within Kubernetes, making them available for consumption by Horizontal Pod Autoscalers (HPAs) and other Kubernetes components that rely on the Custom Metrics API.

• **Prometheus Metrics as Custom Metrics:** Translates Prometheus metrics into Kubernetes custom metrics, allowing them to be used for autoscaling and other purposes within Kubernetes.
• **Flexible Querying:** Supports flexible querying of Prometheus metrics using PromQL (Prometheus Query Language).
• **External Metrics Support:** Exposes metrics from external Prometheus servers as custom metrics in Kubernetes.
• **Label Mapping:** Provides mechanisms to map Prometheus labels to Kubernetes labels, enabling seamless integration with Kubernetes objects.

• **Autoscaling Based on Prometheus Metrics:** Enables you to configure Horizontal Pod Autoscalers (HPAs) to scale your applications based on custom metrics collected by Prometheus.
• **Enhanced Monitoring and Observability:** Makes Prometheus metrics more readily available for consumption by Kubernetes components, contributing to improved monitoring and observability.
• **Open Source:** The Prometheus Adapter is an open-source project under the Apache 2.0 License.

• **Installation:** Install the Prometheus Adapter using Helm or by applying the necessary manifests directly to your Kubernetes cluster.
• **Configuration:** Configure the Prometheus Adapter to connect to your Prometheus server(s) and define rules for mapping Prometheus metrics to Kubernetes custom metrics.
• **Usage:** Utilize the Custom Metrics API to access and use the exposed Prometheus metrics for autoscaling or other purposes.

• **GitHub Repository:** * s://github.com/kubernetes-sigs/prometheus-adapter(https://github.com/kubernetes-sigs/prometheus-adapter)
• **Official Documentation:** * [invalid URL removed]